short example on how to use base64 image in tkinter
import tkinter as tk
 
image_data = '''
    R0lGODlhEAAQAMQZAMPDw+zs7L+/v8HBwcDAwLW1teLi4t7e3uDg4MLCwuHh4e7u7t/f38TExLa2
    tre3t7i4uL6+vu/v77q6uu3t7b29vby8vLm5ubu7u+3t7QAAAAAAAAAAAAAAAAAAAAAAACH5BAEA
    ABkALAAAAAAQABAAAAWNYCaOZFlWV6pWZlZhTQwAyYSdcGRZGGYNE8vo1RgYCD2BIkK43DKXRsQg
    oUQiFAkCI3iILgCLIEvJBiyQiOML6GElVcsFUllD25N3FQN51L81b2ULARN+dhcDFggSAT0BEgcQ
    FgUicgQVDHwQEwc+DxMjcgITfQ8Pk6AlfBEVrjuqJhMOtA4FBRctuiUhADs=
'''
 
root = tk.Tk()
 
image = tk.PhotoImage(data=image_data)
dimensions = "image size: %dx%d" % (image.width(), image.height())
 
icon = tk.Label(root, compound="top", image=image, text=dimensions)
icon.place(x=50, y=30)
root.mainloop()